The proposal, which is open for comments until July 9, says the government is also developing enforcement plans, which could include an education campaign, written warnings, compliance orders and unspecified charges.

Legislation making the stickers mandatory was included in the budget bill and comes with fines of up to $10,000 per day for gas station operators who don’t comply.

The Ontario Chamber of Commerce has said its members are concerned about the “political nature” of the stickers and view the requirement to display them as a violation of their rights and freedoms.